package org.jivesoftware.webchat.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;


public class CharacterEncodingFilter implements Filter {

	String encoding = null;
	FilterConfig filterConfig = null;
	
	
	public void init(FilterConfig filterConfig) throws ServletException {
		this.filterConfig = filterConfig;
		this.encoding = filterConfig.getInitParameter("encoding");
	}


	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		if (encoding!=null){
			
			request.setCharacterEncoding(encoding);
		}
	
		chain.doFilter(request,response);
	}

	public void destroy() {
		this.encoding = null;
		this.filterConfig = null;
	}

}